NYSE

When there is an instability in the economy, it's always better to invest in defensive stocks as their demand stays stable and their dividends stay steady.

When the economy changes, cyclical stocks like Caterpillar are more likely to lose value. They might give more growth during booms, but they come with more risk during busts.

Think about how much danger you are willing to take and how long you have to invest.

Low stock prices don't indicate that you need to invest in that company. Investing in a company depends on other features, too, like the performance of the company, its stability, and your risk tolerance capacity. The price difference between the stocks of Visa Inc. ($313.04) and Wells Fargo ($72.03) is significant.
But I would suggest you to, invest in Visa Inc. as it is expanding worldwide, which makes it more beneficial for you in the future. 
Also, it gives you stability with the low-risk factor, which makes it a more reliable investment option for the long term.

The Stock Price of AT&T

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Investment analysts predict the increase in the stock price of AT&T in the future, which makes it a good option for investing. As AT&T is planning to expand its services by providing 5G facilities to almost everyone by 2026. Purchasing its shares is a wise decision.

Investing in LLY could be a profitable decision, as it shows strong growth because of their recent advancement, and analysts estimate steady growth in the next few years. But still, the pharmaceutical business is very competitive. So, it is advisable to evaluate the risk factor and valuation criteria before investing.